Content filtering blocks access to restricted or malicious websites. When a user attempts to visit a site that violates company policies, they are redirected to a restriction page.
This is a common security measure to prevent employees from accessing phishing or malware-infected sites.
Content filters work by scanning URLs, keywords, or categories and blocking inappropriate or harmful content.
Option A (DLP - Data Loss Prevention): Focuses on preventing sensitive data leaks rather than blocking web access.
Option B (Captive portal): Used mainly in public Wi-Fi to authenticate users before granting access, not to restrict sites.
Option D (DNS sinkholing): Redirects malicious domain requests to a safe address but is not responsible for policy-based restrictions on general content.
? Reference: CompTIA Network+ (N10-009) Official Study Guide - Section: Security Solutions